It appears to me there are people camped out in the left lane because they are just ignorant of the rule. The friend of mine that got the ticket never knew there was such a law or even a rule of thumb. People who live their entire lives inside a large city do not learn this rule because the interstates are all 4 lanes each way and a mad free for all with people merging this way and that every step of the way. When these people get outside the city they don’t know what they are doing and don’t understand the rules of the road.
Also, there are those annoying jackasses who speed up when you try to pass them. If you are on cruise control and the jackass speeds up, what do you do? I wait for the jackass to slow back down and then pass. That means I’m in the left lane for a longer period of time. I believe this is another case of people spending too much time inside a big city. It is impossible to maintain a constant speed on an 8 lane divided interstate jammed with cars. So the people who never leave the city never learn to drive at a constant speed. Then when they do leave the city, they are complete jerks to everyone around them without ever even knowing it.
Yep, it’s real frustrating when you can’t use Cruise Control on relatively open road.
I have positive anecdotal evidence of that first. Wife was in a lunchroom conversation a few years back, and one of the admins admitted to being completely ignorant of the whole “slower traffic keep right” concept. Had to be explained to her from the ground up. Woman was probably late 30s or so, been driving her whole life.
I just punch it, pass them, signal and move over in front of them. It doesn't take long for me to get back to legal speed, nor for them to return to their brain-dead oblivious state.